Being in the Highway Traffic Safety Products biz, I can certainly speak to it's effectiveness for visibility. I sell tons of vests, t shirts, sweatshirts and jackets to municipalities for their street workers to help keep safe out on the mean streets. Great stuff.

I really should wear one of the High Viz jackets while riding, for my own safety. Perhaps a future purchase.

I personally think that the alpine stars jacket looks pretty sick.
I can't really afford that kind of gear quite yet, but all I have is a black http://www.motorcyclehouse.com/Motor...ts-For-Men.htm with 2 reflective strips in across LOL.
Hopefully I don't die before I can afford some real quality gear.